Carbon Data Sources

The following are our sources for Carbon and Grid Data to inform carbon impact metrics. We are continuously adding to these resources - do not hesitate to ask about data sources outside this list.

Watttime provides real-time and historical grid data to assist in calculating the Marginal Carbon Impact, using an internally derived, location-specific, hourly Marginal Operating Emissions Rate (MOER). MOER represents the emissions rate of the electricity generator(s) responding to changes in load on the local grid at a certain time.

See more at https://www.watttime.org/

Electricity Maps provides access to the real-time and historical carbon intensity and power breakdown data globally. Their real-time data platform continuously processes the most up-to-date data, and their internal estimation models further ensure completeness of real-time data, even if some data sources are unavailable.

See more at https://www.electricitymaps.com/

EGRID is a comprehensive source of data from EPA's Clean Air Markets Division on the environmental characteristics of almost all electric power generated in the United States.

The data includes emissions, emission rates, generation, heat input, resource mix, and many other attributes. eGRID is typically used for greenhouse gas registries and inventories, carbon footprints, consumer information disclosure, emission inventories and standards, power market changes, and avoided emission estimates.

See more at https://www.epa.gov/egrid